Depo {need advice}

Hi! I was on the birth control shot, Depo for about a year and a half maybe a tad bit longer. I've not received any shots for about 5-7 months because I've heard and researched that it can effect the process of TTC. This will be our third month of TTC.. 
Does anyone on this site know of anything(facts), or anyone that has ever been on that medication and had complications? I'm trying to stay positive and just tell myself it just takes awhile for some people, which I know is true-- but I just wanted to hear it from an actual human, not reading from some website.